*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19720
19730
19740
19751
19760
19770
19780
19790
19801
19810
19820
19830
19840
19851
19861
19872
19880
19890
19900
19910
19920
19930
19940
19950
19960
19970
19980
19992
20000
20013
20020
20030
20040
20052
200621
200715
20086
20091
20102
20111
20128
20132
20140
20154
20163
201711
201843
20198
202023
202125
202237
202310
20240
Total234